所以我在 JPanel 中全面移动我的 Snake 时遇到了一些问题。现在这不是 JPanel 的问题或错误,我只是无法像应有的那样移动 Snake。我知道问题出在哪里,但我只是想不出一种方法让它正常工作而不会出现问题。
问题:Snake 应该彼此相距约 10 px,但它却聚集成彼此相距约 1 px。
这就是它应该看起来的样子。
这是它结块时的样子
我尝试了几种我能想到的不同方法,并且我已经为此工作了好几天。
Snake 应该以 1px 的速度保持移动,所以它是平滑的动画。头部不需要受到影响,因为无论如何它都在移动。但是一旦循环赶上头部,它就会找到头部的位置,并将位置提供给身体。
蛇的移动。
int playerVel = 1;
public void MovePlayer(){
//Move the snake tail
if(IsMoving()){
//Move the head by its velocity
if(left){
X[0] -= playerVel;
}
else if(right){
X[0] += playerVel;
}
else if(up){
Y[0] -= playerVel;
}
else if(down){
Y[0] += playerVel;
}
for(int i = getSizeWithArmor(); i > 0; i--){
//Issue is when the for loop finishes counting down it located the Head's position that is 1 px away, and the rest of the body clumps up to it.
int newLocX = X[i] - X[i-1];
int newLocY = Y[i] - Y[i-1];
if(newLocX != 0){
if(newLocX == 10 || newLocX == -10){
X[i] = X[i-1];
}
else if(newLocX > 0){
X[i] = X[i-1] + 10;
}
else if(newLocX < 0){
X[i] = X[i-1] - 10;
}
else{
X[i] = X[i-1];
}
}
if(newLocY != 0){
if(newLocY == 10 || newLocY == -10){
Y[i] = Y[i-1];
}
else if(newLocY > 0){
Y[i] = Y[i-1] + 10;
}
else if(newLocY < 0){
Y[i] = Y[i-1] - 10;
}
else{
Y[i] = Y[i-1];
}
}
}
}
}
编辑1:
任何帮助将不胜感激!如果我需要添加更多细节,请随时告诉我!
编辑2:
Move X[0] X[1] X[2] X[3] X[4] X[5]
-----------------------------------------------------
1 60 50 40 30 20 10
2 61 51 41 31 21 11
3 62 52 42 32 22 12
4 63 53 43 33 23 13
5 64 54 44 34 24 14
6 65 55 45 35 25 15
7 66 56 46 36 26 16
8 67 57 47 37 27 17
是我正在尝试做的事情。但随着蛇变长,它必须适应。
编辑3:
这是整个 Player 类。玩家类负责所有的移动,并对齐它自己。
班级球员:
public class Player implements Runnable{
//Info about the Player
private int[] X;
private int[] Y;
private int[] size;
private int blockPickup;
private int points;
private int armor;
private int blockSize = 10;
//Speeds
private int playerVel = 1;
private int speedDelay = 100;
//Direction the player is moving
private boolean up = false;
private boolean down = false;
private boolean right = false;
private boolean left = false;
private boolean inGame = false;
private boolean gamePaused = false;
private int boardWidth;
private int boardHeight;
private int allSpaces;
public void AddBlock(){
size = new int[getSizeWithArmor() + 1];
points++;
blockPickup++;
}
private void AddBlock(int increase){
size = new int[getSizeWithArmor() + increase];
points++;
}
public void AddArmor(){
armor++;
AddBlock(1);
}
public void RemoveArmor(){
armor--;
size = new int[getSizeWithArmor() - 1];
}
public int getArmor(){
return armor;
}
public int getSizeWithArmor(){
return size.length;
}
public int getSizeWithoutArmor(){
return size.length - armor;
}
public void ResetSize(){
size = new int[1 + getArmor()];
}
public int getPoints(){
return points;
}
public void IsGamePlaying(boolean playing){
inGame = playing;
}
public void IsGamePaused(boolean pause){
gamePaused = pause;
}
public void Reset(){
points = 0;
armor = 0;
blockPickup = 0;
ResetSize();
InitPlayer();
}
public Image Head(){
if(up){
return headUp;
}
else if(down){
return headDown;
}
else if(right){
return headRight;
}
else if(left){
return headLeft;
}
else{
return headRight;
}
}
public void InitPlayer(){
for(int i = 0; i <= getSizeWithArmor(); i++){
X[i] = (boardWidth / 2) - (i * blockSize);
Y[i] = boardHeight / 2;
}
}
public void SetDirection(int key){
if(key == KeyEvent.VK_UP && !down){
up = true;
left = false;
down = false;
right = false;
}
else if(key == KeyEvent.VK_DOWN && !up){
up = false;
left = false;
down = true;
right = false;
}
else if(key == KeyEvent.VK_LEFT && !right){
up = false;
left = true;
down = false;
right = false;
}
else if(key == KeyEvent.VK_RIGHT && !left){
up = false;
left = false;
down = false;
right = true;
}
}
public void MovePlayer(){
//Move the snake tail
if(IsMoving()){
//Move the head by its velocity
for(int i = getSizeWithArmor(); i > 0; i--){
int newLocX = X[i] - X[i-1];
int newLocY = Y[i] - Y[i-1];
//Block going left
if(newLocX > 0){
if(newLocX == -1){
}
else if(newLocX < -1){
X[i] = X[i-1] + 10;
}
}
//Block going right
else if(newLocX < 0){
X[i] = X[i-1] - 10;
}
//Block going up
if(newLocY > 0){
Y[i] = Y[i-1] + 10;
}
//Block going down
else if(newLocY < 0){
Y[i] = Y[i-1] - 10;
}
}
if(left){
X[0] -= playerVel;
}
else if(right){
X[0] += playerVel;
}
else if(up){
Y[0] -= playerVel;
}
else if(down){
Y[0] += playerVel;
}
}
}
public boolean IsMoving(){
if(up || down || left || right){
return true;
}
else{
return false;
}
}
public int getX(int i){
return X[i];
}
public int getY(int i){
return Y[i];
}
public void paint(Graphics2D g){
for(int i = 0; i < getSizeWithArmor(); i++){
if(i == 0){
g.drawImage(Head(), X[0], Y[0], null);
}
else if(getArmor() >= i){
g.drawImage(armorImage, X[i], Y[i], null);
}
else{
g.setColor(Color.YELLOW);
g.fillRect(X[i], Y[i], blockSize, blockSize);
}
}
}
@Override
public void run() {
try{
while(inGame){
if(!gamePaused){
MovePlayer();
Thread.sleep(20);
}
}
}
catch(Exception e){
System.err.println("Player has encoundered an error: "+e.getMessage());
}
}
}
我的 Board 类调用了对此类进行更改所需的所有数据。如果这堂课非常杂乱无章,我深表歉意。我还没有回去重新组织它并减少其中的很多废话。我也知道很多代码是多余的,不需要。我正在努力解决所有这些问题。现在我只是想解决蛇的身体问题。
编辑4:
我已经弄清楚了一部分。我已经让它向右和向下平滑地动画。但是,一旦您向左或向上,它就会崩溃,并再次开始引发问题。就像我需要检查它是否在之前以及朝哪个方向移动。
public void MovePlayer(){
//Move the snake tail
if(IsMoving()){
//Move the head by its velocity
for(int i = getSizeWithArmor(); i > 0; i--){
int newLocX = X[i] - X[i-1];
int newLocY = Y[i] - Y[i-1];
//Figure out the last direction it was going in
if(newLocX != 0 && newLocY != 0){
}
//Block going left
if(newLocX > 0){
if(newLocX > 0 && newLocX <= 10){
X[i] -= 1;
}
else if(newLocX > 10){
X[i] = X[i-1] - 10;
}
}
//Block going right
else if(newLocX < 0){
if(newLocX < 0 && newLocX >= -10){
X[i] += 1;
}
else if(newLocX < -10){
X[i] = X[i-1] + 10;
}
}
//Block going up
else if(newLocY > 0){
if(newLocY == 1){
Y[i] -= 1;
}
else if(newLocY > 1){
Y[i] = Y[i-1] - 10;
}
}
//Block going down
else if(newLocY < 0){
if(newLocY < 0 && newLocY >= -10){
Y[i] += 1;
}
else if(newLocY < -10){
Y[i] = Y[i-1] + 10;
}
}
if(left){
X[0] -= playerVel;
}
else if(right){
X[0] += playerVel;
}
else if(up){
Y[0] -= playerVel;
}
else if(down){
Y[0] += playerVel;
}
}
}